mclust priors

I am currently exploring mclust to do clustering by Gaussian mixture
modeling.  There are typically 1-5 clusters in my datasets.

In the latest version of mclust (version 3), there is now the ability
to specify priors.  However, I am confused about the implementation.
I've read through the documentation about priorControl() and
defaultPrior() which describe the specification of a single prior for
a dataset.  But I often have a prior for all of my clusters -- how do
I specify that, i.e. give the program multiple means and multiple
covariance matrices for where I believe the clusters will be a priori?

Thanks,
Finny Kuruvilla

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Finny Kuruvilla, MD, PhD
Harvard Medical School Fellowship Program in Transfusion Medicine
Broad Institute of MIT and Harvard
Homepage: http://www.people.fas.harvard.edu/~kuruvill/home/